Indicator



June 28, 1938. A, G. wlNTl-:Rs

INDICATOR Filed July 8, 19:55 2 sheets-sheet 1 June 28, 1938. A, G, wlNTERs 2,121,848

INDICATOR Filed July 8, 1935 2 Sheets-Sheet 2 Patented June 28, 1938 UNITED STATES PATENT OFFICE INDICATOR. Alfred G. Winters, Flint, Mich.

Application July 8, 1935, Serial No. 30,356

'1 Claims.

This invention relates to testing and checking points, lines, and surfaces.

This invention has utility when incorporated in instruments for quickly disclosing alignment l and measurements.

Referring to the drawings:

Fig. 1 is a side elevation of an embodiment of the invention in an internal dimension checking tool having a directing mounting therefor;

l. Fig. 2 is a side elevation of the device of Fig. 1;

Fig. 3 is an enlarged view of the tool with the cover removed for showing the throw-multiplying actuator;

Fig. 4 is a section on the line IV--IV, Fig. 1;

1I Fig. 5 is a detail view in spread position of the -connecting arms between the work contactor and the pointer lever, the contactor being a modiiied construction from. the contactor of Fig. l;

Fig. 6 is a fragmentary view of the tool having I a directing take-up mounting therefor;

Fig. "I is a. detail view ofla'jointed mounting and a differential takeup;

Fig. 8 is a plan of an arm mounting clamp ior the tool;

2l Fig. 9 is a side elevation oi' the tool having a directing handle and an arm attached thereto by the arm clamp of Fig. 8; v

Fig. 10 is a side elevation of the'arm and extension terminus of Fig. 9;

f ao Fig. 11 is a. side view of the arm of Fig. 9 with" a straight instead of an offset terminus attached therewith;

Fig. 12 is a view of the tool of Fig. 9 having an arm with a clamp-connected point instead of a 3l telescopic terminus, as well as additionally having a rest for locating the contactor as to the work;

Fig. 13 is a partial section on the line XIII-XIII, Fig. 12, the frame being removed;

Fig. 14 is a fragmentary view of a clamp-connected terminus, herein shown as ball instead of point as in Fig. 12;

Fig. 15 is a view similar to Fig. 14, with an offset terminus for the point;

Fig. 16 is a fragmentary view of the tool in center checking position, say as in a horizontal power tool of the lathe type;

Fig. 17 is a.4 detail view of the special arm or bracket for positioning the tool as tol the axial extending means shown in Fig. 16;

Fig. 18 is a view of an extension arm or bar for mounting this tool;

Fig. 19 is a view of the terminus of the arm having a pointed instrument instead of an oiset terminus at the arm remote from the tool;

(Cl. :i3-172) Fig. 20 shows a round nose or spherical terminus for the instrument as used on an extension bar; and Fig. 21 is an enlarged section on the line XXI-XXI, Fig. 3.

v 6 'Ihe main frame is shown with fan-shaped portion I (Fig-3) at the narrow portion of the fan having fulcrum 2 and therefrom narrowed vportion 3 to terminal fulcrum 4. Side walls 5 from the fulcrum 4 to adjacent the fulcrum 2 form the portions from the frame member 3 as a channel, while side flanges 6 along the widening portion I provide walls effective in cooperation with companion frame member 1, 8, in completing the housing for this indicator tool. Interlocking tongues 9 from the side flanges 6 of the frame member I, 3, enter recesses I0 in the frame member 1, 8. Tongues II from the anges of the member I, 3, extend into openings I2 in the member 1, 8. Fulcrum screw I3 is helpful in completing this assembly together with curved tongues I4 from the member 1 entering recesses I6 in the member I.

Mounted on the fulcrum 2 is pointer lever I6 having oiset I1 thereby .carrying pointer terminus I 6 on one side and I8 on the other side l of graduations 20 on the members I, 1, adjacent tongue member 2I, mounted in the frame with openings 22 on each side thereof for clearance lin allowing the pointers I8, I9, to shift as the lever'I6 rocks on its fulcrum 2. This lever I6 orrthe side of the fulcrum 2 toward the pointers has pin 23 and on the opposite side, pin 24. From the pin 23 as transmission engagement means, there extendsarm 25 to pivot mounting 26 on arm 21 of contactor lever mounted on the fulcrum 4 coaxial with the screw I3. From the pin 24 as transmission engagement means, there extends adjacent the arm 25, arm 28 to the common pivot mounting 26. These arms 25, 28, have terminal channels at the pins 23, 24, directly rocking the lever I6. In the other direction, the arms 25, 28, extend beyond the pivot mounting 26 toward the fulcrum 4. However, the arm 25 has offset 29 more remote from the fulcrum 4 than the pivotal mounting 26. to be engaged by the lever 21 in its swing in one direction on the fulcrum 4, thereby to serve as transmission engagement means for the arm 25 as acting therethrough upon the lever I6. Likewise, the arm 26 has offset 30 to be engaged by the lever 21 in the reverse movement from that effecting the arm 25 in thus providing transmission engagement means for the arm 28 to the lever I6. Fixed by pin 3| with the frame portion 5 is Aspring 32 as of wirev extending to the lever I4,

The tongue member 2| as extending or protruding beyond lthe scales of graduations 2l and therebetween may be engaged by friction pocket 34 (Fig. 1) having connection by pivot screw 31 with tapered stem I4, which may enter directly an adaptor or shank 3l, wherein may have been used the tool for developing opening 40 having the surface 3l.

In the instance that there be a question of irregularities to be met in the opening 40, which should not be harmful to the indicator 2 herein, friction pocket 34 may have on its stem I4, assembled by clamp mounting 4|,tubular member 42 having therein spring 43. The member 42 may be retained by friction ring 43'. 'I'his tubular member 42 is in sleeve 44 against which the spring 43 acts when thrust into tapered terminus 45 from the sleeve '44 oi chuck 46. There is thus provided a yieldable longitudinal take-up for the instrument or tool hereunder in the work with occasion for directional side adjustment through pivot head 41 seated in reduced dimension flange 44'.

'I'his tubular member 4B is in sleeve Il and houses minor or weaker spring in spacing the tubular memsbzer 48 from tapered chuck engaging terminus 'Ihe fan-shaped portion of the tool may have embracing member Il (Fig. 8) effective as a clamp carrying threaded stem I4 with knurled nut I5 thereon. This knurled nut 55 may serve as a clamp for arm 58 (Figs. 9, 10), herein shown as having terminal stem portion l1 with which split tubular member I4 may telescopically frictinally coact in mounting ,cupped terminusV Il offset toward the axis of the stem 54, shown as close to the medial line on the graduations 2l and the line therefrom through the fulcra 2, 4.

This means that, with this type of instrument provided, say with directing handle Il on the stem Il. this caliper or measuring device may fnction in a small opening in work. In practice, with the Vdevice having a frame of nearly three inches in length and approximately one-quarter inch in width adjacent the fulcrum 2, operations may be in an opening of as small as three-slxteenths inch internal diameter. 'Ihe terminal stem portion 41 provides a readily attachable mounting for different types of work-engaging portions or extensions, and instead of oilset extension 54, there may be different type as straight extension 4| (Fig. 11).

A Furthermore, from the knurled nut II on the screw or threaded portion I4, there may be arm 42 having terminally thereof clamping screw 43 for mounting auxiliary instrument 44 (Fig. 12).

herein shown as a pointer. In this use it is desirable that the contactor 34 in some instances, aswhen surface l5 being' measured may have irregularities, be determined from the instrument 44 while maintained at a determined position. 'I'his is accomplished by clamp 66 embracing the main frame and adjusted by knurled screw 61. From this clamp there is finger 64 to contact the work 4I. Thus the location of the contactor 34 is against shifting relatively to the auxiliary instrument 44 when the tool has its position directed by theoperator engaging the directing handle 40 and is thus steadied.

Clamping screw 83 may mount, instead oi pointed instrument 64, a ball terminus instrument 49 (Fig. 14) or oifset terminus 1|) (Fig. 15). Upon screw stem 54 vinstead of the arm 56,

the nut 55 may clamp 'in position bracket mem-` l ber 'Il (Figs. 16, 17) having terminal loop 12 embracing centering stem 12 having connection through member 14 with chuck 15.

'This bar 13 is shown in engagement with plunger 16, yieldably thrown by spring 11 in sleeve 'Il of yieldable take-up device or wiggler having centering point 19 remote from the bracket 1|. This pointer 19 is desirably located to iind center of relatively rotating work 80 opposing the chuck 15. of the tail stock, for a grinder, drill press, lathe, boring mill, milling machine, or other type of power tool or locator in horizontal or other set-up.

Laterally contacting this wiggler 18 adjacent the centering point 18 is the contactor 34, thus in throw-multiplying responsive position as to this tool. 'Ihe operator is thus enabled accurately to locate a point for centering on work in a machine set-up. Location of the tool in a position may be determined upon a surface of worky and is conveniently had by assembling on the screw stem 54 block 8| (Fig. 18) having adjusting screw 42 to engage bar 83 as an extension, such bar having a ilat side as a key against angular shifting when locked in position. This bar 43 may have supplemental block 84 anchored therewith through set screw 85. This block 84 has opening 86 for minor instrument 81 locked by set screw u. This instrument 81 may have centering point 8l' (Fig. 19). In other practices it may be desired to provide oilset point 89 (Fig. 18). Additionally, in certain classes of work it may be demining calibration accuracies. This practical use is in a wide range for accuracy or minute measuring, even as to the instrument being remote in its positioning as to a point of control as through the bar 83. 'I'he accuracy is for use in quite small places but with a pointer movement responsive to ready observation by the operator of the tool.

The pointers I8, I9, may be assembled into a unit (Fig. 21) by providing openings 92' in the arm I6, and ears extending therethrough from adjacent the offset I'I and clamping the termini of the ears 93 against the opposite side of the arm I4. The plate 2| may be provided with notch I4 adjacent the zero markings on the indicator.

the indicator is rotating.

What is claimed and it is desired to secure by Letters Patent is:

1. An indicating instrument comprising a main frame, an indicator mounted thereby including a pointer lever, a pivotalI vmounting for the lever in the frame. a throw-multiplying actuator for the pointer lever embodying a contactor lever, a fulcmm mounting for the contactor lever remote from the -pointer lever pivotal mounting, a pair of arm means between the levers having common pivotal connection to the contactor lever on the side of its fulcrum toward the pointer lever, said arm means each having transmission means in position for engagement with one of said levers away from the pivotal mounting and iulcrum, the transmission engagement means for one arm being eiIective in one direction of contactor movement and the means for the other arm being effective in the opposite direction oi contactor movement.

2. An indicating instrument comprising a main frame providing a housing, an indicator mounted thereby including a pointer lever, a pivotal mounting for the lever in the frame, a throwmultiplying actuator for the pointer lever embodying a contactor lever, a fulcrum mounting for the contactor lever remote from the pointer lever pivotal mounting, said housing iully enveloping the mountings, and multiple transmission means including two alternatively operable arms wholly within the housing each pivoted to the actuator lever, one of said arms actuable from the contactor lever in one direction of movement to throw the pointer lever and the other of said arms operable from the contactor lever reverse movement to throw the pointer lever.

3. An indicating instrument comprising a main frame providing a housing, an indicator mounted thereby including a pointer lever, a pivotal mounting for the lever in the frame, a throwmultiplying actuator for the pointer lever embodying a contact lever, a fulcrum mounting for the contactor lever remote from the pointer lever pivotal mounting, and a pair of independently actuable diverging arm means wholly within the housing between the pointer and contactor levers having pivotal connection to one of the levers away from the mounting of such lever and one of the arm means extending past the other of the arm means arranged to actuate the indicator from one direction of contactor lever movement and the other of the arm means arranged to actuate the indicator upon contactor lever movement in the opposite direction.

4. An indicating instrument comprising a main frame providing a housing, an indicator mounted thereby including a pointer lever, a pivotal mounting for the lever in the frame, a throwmultiplying actuator for the pointer lever embodying a contactor lever, a fulcrum mounting for the contactor lever remote from the' pointer lever pivotal mounting, and dual arm means wholly within the housing and between the pointer and contactor levers having pivotal connection to the contactor lever on the side of its iulcrum toward the pointer lever, said contactor lever cooperating in one direction of movement with one of the arm means to actuate the pointer lever and said contactor in its other ,direction ot -movement cooperating with the other ot the arm means to actuate said pointer lever.

5. An indicating instrument comprising a main frame, an indicator mounted thereby including a pointer, a pair of relatively movable throwmultiplying actuator arms for the pointer, a contactor lever arranged to shift one arm in one direction of movement and the other arm in the opposite direction of movement, a fulcrum mounting for the contactor lever remote from the pointer, and detachable means adapted to be nxedly adjusted as -to the frame laterally adjacent said fulcrum and extending away from and in addition to said mounting into proximity for also contacting work adjacent the contacting lever and in assembly therefrom locating the lever definitely as to the work, thereby determining distance transmission disclosure to the pointer as effected in locating the lever by said means.

6. An indicating instrument comprising a main frame, an indicator lmounted thereby including a pointer, a pair of throw-multiplying actuator arms for the pointer, a contactor lever arranged to shift one arm in one direction of movement and the other arm in the opposite direction of movement, a fulcrum mounting for the contactor lever remote from the pointer, a common axis pivotal mounting on which the arms are independently rockable, and terminally offset detachable means adapted to be angularly fixedly adjusted as to the frame in lateral proximity to said frame 'and extending away from and in addition to said mounting to the region of the contactor lever to provide a iixed work-contacting position by engaging the work laterally from the region of the Work contacted by the contactor lever, thereby determining distance transmission disclosure to the pointer as effected in locating the lever by said means.

7. An indicating instrument comprising a main frame, an indicator mounted thereby including a pointer, a pair of independently oppositely shiftable throw-multiplying arms actuator for the pointer, a contactor lever arranged to shift one arm in one direction of movement and the other arm in the opposite direction of movement, a fulcrum mounting for the contactor lever remote from the pointer, and a work-contacting detachable finger away from and in addition to said mounting, said nger being adapted to be iixedly adjusted as to the frame adjacent the contactor lever laterally of its fulcrum to provide instrument setting means at the work in proximity to the contactor lever, thereby determining distance transmission disclosure to the pointer as eiected in locating the lever by said means.

ALFRED G. WINTERS.

CERTIRICARR oF CORRECTION. Patent No. 2,121,8Ll3. June 2e, 1958.

ALFRED G. WINTERS.

It is hereby certified thet error appears in the printedspecifiction of the above numbered patent requiring correction as follows': Page 5, first l column, line 14.2', claim 5, for the wordl "contact" read contacter; and second column, line )4.9, claim?, for "arms actuator read actuator arms; and that the said Letters Patent should be read withthis correction therein that the same may Iconform to the record o1 the case in the Patent Office.

signed and sealed this 9th\day or August, A. D. 1958.

(Seal) Acting; Commissioner `of Patents. 

